MESON Chess Problem Database

Problem Display
PID: 45603 (8/1Np5/2P2p2/3p1p2/1Q1pkp2/4p2R/7B/N3K3 w - - 0 1)

Kovacs, Florian Janos

Recomm., BCF 054. Ty., 1946-1947

8/1Np5/2P2p2/3p1p2/1Q1pkp2/4p2R/7B/N3K3

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Sc5#
    • 1...Ke5
      • 2.Qe7#
    • 1...e2
      • 2.Qe7#
    • 1...f3
      • 2.Sc5#
  • Tries
    • 1.Kd1?
      • 1...Kd3
        • 2.Sc5#
      • 1...Ke5
        • 2.Qe7#
      • 1...f3
        • 2.Sc5#
      • 1...e2+!
    • 1.Kf1?
      • 1...Kd3
        • 2.Sc5#
      • 1...Ke5
        • 2.Qe7#
      • 1...f3
        • 2.Sc5#
      • 1...e2+!
    • 1.Ke2?
      • threat
        • 2.Qe7#
      • 1...Ke5
        • 2.Qe7#
      • 1...f3+!
    • 1.Sc2?
      • threat
        • 2.Qxd4#
      • 1...Ke5
        • 2.Qe7#
      • 1...Kd3!
    • 1.Sb3?
      • threat
        • 2.Qxd4#
      • 1...Ke5
        • 2.Qe7#
      • 1...Kd3!
    • 1.Bg1?
      • 1...Kd3
        • 2.Sc5#
      • 1...Ke5
        • 2.Qe7#
      • 1...e2
        • 2.Qe7#
        • 2.Qxd4#
      • 1...f3!
    • 1.Qa3?
      • 1...Ke5
        • 2.Qe7#
      • 1...f3
        • 2.Sc5#
      • 1...e2
        • 2.Qe7#
      • 1...d3!
  • Keys
    • 1.Qb2!
      • 1...Kd3
        • 2.Qc2#
      • 1...Ke5
        • 2.Rxe3#
      • 1...f3
        • 2.Sc5#
      • 1...e2
        • 2.Qxe2#
      • 1...d3
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(b),P_SPINP(a),S_FLIGHT::S(G)
    • K(c);N_SPINP(b),P-FLIGHT,P_SPINP(d)::QAR2(E)
    • P(a);::QAR(E)
    • P(d);::S(G)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(c);N_SPINP(b),P_SPINP(a),S_FLIGHT::S(G)
        • K(c);N_SPINP(b),P-FLIGHT,P_SPINP(d)::QAR2(E)
        • P(d);::S(G)
      • Refutation
        • P(a);CHECK
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(c);N_SPINP(b),P_SPINP(a),S_FLIGHT::S(G)
        • K(c);N_SPINP(b),P-FLIGHT,P_SPINP(d)::QAR2(E)
        • P(d);::S(G)
      • Refutation
        • P(a);CHECK
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAR(E)
      • Vars
        • K(c);N_SPINP(b),P-FLIGHT,P_SPINP(d)::QAR2(E)
      • Refutation
        • P(d);CHECK
    • Try
      • S(A);
      • Threat
        • QAR1(E),XP(b)
      • Vars
        • K(c);N_SPINP(b),P-FLIGHT,P_SPINP(d)::QAR2(E)
      • Refutation
        • K(c);N_SPINP(b),P_SPINP(a),S_FLIGHT
    • Try
      • S(A);
      • Threat
        • QAR1(E),XP(b)
      • Vars
        • K(c);N_SPINP(b),P-FLIGHT,P_SPINP(d)::QAR2(E)
      • Refutation
        • K(c);N_SPINP(b),P_SPINP(a),S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(c);N_SPINP(b),P_SPINP(a),S_FLIGHT::S(G)
        • K(c);N_SPINP(b),P-FLIGHT::QAR2(E)
      • Refutation
        • P(d);
    • Try
      • Q(E);N_PINP(b)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(d)::QAR2(E)
        • P(d);::S(G)
        • P(a);::QAR(E)
      • Refutation
        • P(b);
  • Actual
    • Q(E);N_PINP(b)
    • Vars
      • K(c);P_SPINP(a),S_FLIGHT::QAB1(E)
      • K(c);P-FLIGHT,P_SPINP(b)::R(D),XP(a)
      • P(d);::S(G)
      • P(a);OGATEB::QAR2(E),XP(a)
      • P(b);::S(G)
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